This has not been my experience in the US. The eSIM QR code appears to be one time use with two major carriers I've used (AT&T/T-Mobile). I could not simply scan the previous QR code when I got a new phone I had to go into the store and request another.

A physical SIM in contrast always works. I was already questioning whether I'd ever need to upgrade from the 12 Pro but this type of needless regression makes it an easy decision.